Device for removing broken picks



R. JQADAMS.

DEVICE FOR REMOVING BROKEN PICKS. APPLICATION FILED MAY 6. 1920.

3 SHEETS-SHEET I.

INVENT' R.

A Z'TDRNEY.

R. J. ADAMS.

DEVICE FOR REMOVING BROKEN PICKS;

Arrucm'ou mm mm 6. i929. Patented 1921 a gums-Mm 2- v .INVENTOR.

ATTORNEY.

R. J. ADAMS.

DEVICE FOR REMOVING BROKEN PICKS.

1 APPLICATION FILED MAY 6, I920. 1,371,659, Patented Mar. 15, 1921.

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DEVICE FOR REMOVING BROKEN PICKS.

Specification of Letters Patent.

Patented Mar. 15, 1921.

Application filed May 6, 1920. Serial No. 379,385.

To all whom it may concern:

Be it known that I, ROBERT J. ADAMS, a citizen of the United States, residing at WVest Auburn, in the county of WVorcester and State of Massachusetts, have invented a new and useful Device for Removing Broken Picks, of which the following is a specification. V

This invention relates to a mechanism for removing broken filling threads from the open shed formed by the warp of a loom, and the principal objects thereof are to providean eflicient and practical means for accomplishing this result and more specifically to provide for moving the pick removing element so that it will follow up the shed and enter-the space between the warp threads so as to engage'and extract the broken filling thread even if itlies deep in the shed as is apt to be the case. The invention-also involves means whereby the device is readily adjustable across the loom so that can be applied to the weaving of cloth of'different widths on the same loom and'effective means for guiding the device and also for securing this adjustment. The invention also involves other improvements in details'of construction and combinations of parts as will appear. 7

Reference is to be hadto the accompanying drawings, in which Figure 1 is a front view ofa part of the lay of a loom with a preferred embodiment of this invention applied thereto;

Fig. 2 is a transverse sectional view of the same showing the operating connections;

7 Fig.3 is a sectional view on the line 3-3 of Fig. 4; and on enlarged scale showing the pick remover of the opposite side of the loom, from thatshown inFig. 1; Fig. 4 is aplan of the same; Fig. 5 is'an end view thereof;

Fig. 6 is a view similar to Fig. 3 but with.

the parts in'their' operative instead of their normalposition; 7

plan of the same with parts in section, and V Fig. 8 is anend view with the parts in the same position.

w I have shown the invention as applied to the lay 10 of an ordinary loom by means of three; or more brackets 11 secured on the back of the lay and having extensions pro- .jecting to the front thereof for supporting a pair of tracks 12 arranged in a vertical on cloth of the bottom shaft plane and constituting a guide. These tracks may, and preferably do, extend all the way across the loom on the lay but located below it as indicated, or if desired, there maybe a separate pair of tracks on each end as the central. portion of these tracks wouldseldom or never be used. These tracks are employed to support and guide a slide 13 on each end of the loom. Each slide is provided with four headed rolls 14, two above and two below the lower and upper edges of the two tracks respectively, so that these slides 13 are capable of being moved along the tracks.

On the back girt of the loom are fixed at proper distances from the two ends of the loom a pair of brackets 21. These brackets can be loosened and moved toward or from'each other to provide for operation diiferent widths. Each bracket has a pivot 22 to which is connected a lever 23 held up by a spring 24 connected with the back of the lay. Each lever-has a roll 25 which runs on a cam 26 adjustably fixed to 27 of the loom.' If the brackets 21 are-adjusted the cams 26 will be adjusted accordingly, also the brackets 31 and cams 46. z Y

At the end of the lever 23 is-an adjustable rod 28 which is connected with a bell crank 29 pivoted on a stud 30 carried by a bracket 31 supported by the tracks 12. This bell crank is connected with a link 32 which is pivoted to the center of the slide 13.

On each rotation of the cam 26 the parts remain in the positions shown in Figs. 1 to 5 inclusive until the two cams 26 turn to the position in which the ro lers 25 enter depression 33 in these cams which they do alternately. Then the spring 24 raises the lever 23 and link 28 and swings the bell crank 29 in toward the center of the loom at the top. This results in moving one slide 13 inwardly and with it'the mechanism which it carries.

On each of'the slides 13 there is a hollow standard'35 fixed thereto and having a passage through it for connection at 36 with a hose .for the exhaust of air. This hollow standard which is shown in vertical position is provided with a narrow vertical slot 34 at its top for the admission of air from outside.

Oscillatably mounted thereon is a casing 37 which supports a duck-bill 38 which is formed of two parts, each provided with a 'the slide 13.. This lever is provided with another roller 45 at its end which engages in a cam 46 adjustably fixed to the track12. The cam 46 is adjusted to allow adjustment of the parts for different widths of cloth,

* and also to control the throw of the duck-bill cams are self-contained.

into the shed. All these parts, except the I They are all car ried by the track and can be mounted onit as a whole. 1

- Now when theslide 13 moves in accordance with the operation of the cam 26 toward'the center of the loom the duck-bill is not only moved inwardly toward the center and guided accurately by the track. but it is swung forwardly into the shed in the direction of the feed of the cloth by the action of the roller in engaging the fixed cam 4621s shown in Figs. 6, 7 and 8. The duckbill therefore moves up into the shed and substantially into contact with the crossing warps, so that wherever the broken filling may lie some part of it will be in a position to beengaged by the duck-bill and sucked into it by the air suction" constantly ex-- erted. 'As willappear from Fig. 7 it is at this time that thetwo slots 34 and 40 come into alinement with each other and the suction therefore is completed from the .exhausting apparatus to the tip of the duckbill; This results therefore in effectively getting hold of the thread and drawing'it in. Then as the lay beats up and the slide is drawn back'the duck-bill swings back and withoutany additional motion cuts off the thread at theplace where it, passes through the two slots which nowv close past each other and shut .off the suction/ V The operation of the devicehas been described and it will be understood that the parts-are so timed by means of the cam 26 that the duck-bill on each side follows in tothe shed immediately after the respective shuttle is thrown. first on one side and then on the other, and each of them is drawn back again before the shuttle is thrown back from the other side. It is thisdouble registering and turning motion that is responsible for securing eflicient action for the purpose intended, following up the broken thread as it were, and getting hold of it no matter how it may lie in the shed.

' In order to adjust the device for narrower or wider cloth the brackets 21 and 31 and cams26 are loosened and, moved out or in,

and again fastened. This infitself will move the slides along to the proper position. The cams 46 then haveto be adjusted similarly. I i

Although Ihave illustrated and described only a single form of the invention I am aware of, the fact that modifications can be made therein by any person skilled in the art'without departing from the scope of the inventionas expressed in the claims. There: fore I do not wish to be limited to all the details of construction herein shown and described but what I do cla'im is 1. In a device for the'purposefspecified, the combination with the-lay, of a'guide'located therealong, and means movable along the guide and guided therebyfor entering the shed for the purpose of removing broken filling threads from the shed and adapted to move transversely alsob i 2.' In a device for removing broken filling threads from the warp of a loom the combination with the'layian'd a guiding means extending longitudinally thereof across the loom, of a slide movable on' said guiding means at each end .of the loom, and a suction device carried by each slide for r'emoving the broken filling threads.

3. The combination with the lay of a loom. of a track carried by said lay and extending entirely across theloom, a pair of slides mounted'to move on saidltrack; and

means for moving said slidein toward the center of'the loom, timed; to followthe inward motion of the shuttle from that flend and for retractingit.

1 4. The combination loom,-of a'track carried by said lay, a pair of slides mounted to move on said track means for movingeach slide in toward the center of the loom after the shuttle'moves in from that end, and for retracting it, a;

suction nozzle carried by the slide, and means for turning said nozzle afterit moves into the shed.

5, Ina device for removing broken filling threads fromthe warp'of a loom, the. com bination with the layand a track extending longitudinally ithereof of a slide movable on said track at each end of the loom, pneu- Wah thelay r a matic' means oscillatablyv carried by .each

slide for removing'afbroken thread from the shed, and means for swinging the pneumatic means as it moves into the shed. V

. 6. In a device for removing broken filling threads from the shed of a loom, the combination with the lay, of a track secured there on. pneumatic means movable 7 along: the track and guided thereby forentering the shed, and means whereby said means is moved transversely with respect to the sliding motion of said means after it begins to move into the shed.

" 7. In a device for removingbroken filling threads from the shed of a loom,the combination with the lay, of a pneumatic nozzle carried thereby and capable of turning forward on a vertical axis to enter the shed and move close'to the crossing warp threads.

8. The combination with the lay of a loom, of a movable suction nozzle, and means for controlling the motion of the suction nozzle to move it forwardly lengthwise of the cloth substantially into contact with the crossing threads of the shed after the shuttle is thrown.

9. The combination with the lay of a loom, of a suction nozzle, means on the lay for guiding the suction nozzle, means for controlling the motion of the suction nozzle to move it inwardly from the edge of the loom and then move it forwardly substantially into contact with the crossing threads of the shed after the shuttle is thrown.

10. In a device for removing broken threads from the shed of a loom, the combination of the lay, a guide extending along the lay, a slide movable on said guide, a cam timed to move the lay, means connected with the cam for moving the slide inwardly toward the center of the loom as the lay is about to beat up after the shuttle is thrown.

11. In a device for removing broken threads from a loom shed, the combination of a guide extending along the lay, a slide movable on said guide, a cam, means connected with the cam for moving the slide in wardly toward the center of the loom, a suction device mounted on said slide and comprising a tube and a suction nozzle oscillatably mounted on said tube, and means whereby when the slide moves in the nozzle will swing forwardly toward the crossing threads of the shed.

12. In a device for removing broken threads from a loom shed, the combination of a lay, a slide movable along said lay, a cam timed to move with the lay, means operated by the cam formoving the slide inwardly toward the center of the loom, a suction tube movable with said slide, a suction nozzle oscillatably mounted on said tube, means whereby when the slide moves in the nozzle will swing forwardly toward the crossing threads of the shed, said tube and nozzle being provided with-slots adapted to come into registration when the nozzle is turned forwardly and to move out of registration when the nozzle is moved back to normal position.

13. In a device for removing broken threads from a loom shed, the combination of a lay, a suction device thereon, a cam timed to move with the lay, means connected with the cam for moving the suction device out and in, said suction device comprising a stationary tube and a suction nozzle oscillatably mounted on said tube, means whereby when the suction device moves inwardly the nozzle will swing forwardly toward the crossing threads of the shed, said tube and nozzle being provided with slots adapted to come into registration when the nozzle is turned forwardly and to move out of registration when the nozzle is moved back to normal position, said slots having cutting edges for cutting the thread when the nozzle turns back.

14. In a device for removing broken threads from a loom shed, the combination of a guide extending along the lay, a slide movable on said guide, a cam timed to move with the lay, means connected with the cam for moving the slide inwardly toward the center of the loom when the lay beats up after the shuttle is thrown, a suction device mounted on said slide, a suction nozzle oscillatably mounted on said suction device, means whereby when the slide moves in the nozzle will swing forwardly toward the crossing threads of the shed, the means for operating the slide being adjustable toward and from the center of the loom to provide for operation on cloth of different widths.

15. A filling thread removing device for a loom comprising a suction nozzle of duckbill shape mounted to swing on a vertical axis into the shed in the direction of the feed of the cloth.

16. A filling thread removing device for a loom comprising a suction nozzle mounted to swing into the shed in the direction of the feed of the cloth.

17. A filling thread removing device for a loom comprising a suction nozzle mounted to swing into the shed in the direction of the feed of the cloth, and means for adjusting the extent of its motion.

18. The combination with the lay of a loom, of a suction nozzle, means on the lay for guiding the suction nozzle, means for controlling the motion of the suction nozzle to move it inwardly from the edge of the loom and then move it forwardly substantially into contact with the crossing threads of the shed after the shuttle is thrown, and means for adjusting the extent of its motion.

In testimony whereof I have hereunto aflixed my signature.

ROBERT J. ADAMS.

DISCLAIMER.

1,371,659.-R0bert J. Adams, West Auburn, Mass. DEVICE FOR REMOVING BROKEN PIoKs. Patent dated March 15, 1921. Disclaimer filed December 7, 1923, by the patentee. Hereby enters this disclaimer To claim 3 in said specification, which is in the following Words, to Wit: 3. The combination with the lay of a loom, of a track carried by said lay and extending entirely across the loom, a pair of slides mounted to move on said track, and means for moving said slide in toward the center of the loom tirned to follow the inward motion of the shuttle from that end [Ofiioial Gazette January 1, 1.924.] 

